EP2053484B1 - Control knob - Google Patents

Control knob Download PDF

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Publication number
EP2053484B1
EP2053484B1 EP20080105641 EP08105641A EP2053484B1 EP 2053484 B1 EP2053484 B1 EP 2053484B1 EP 20080105641 EP20080105641 EP 20080105641 EP 08105641 A EP08105641 A EP 08105641A EP 2053484 B1 EP2053484 B1 EP 2053484B1
Authority
EP
European Patent Office
Prior art keywords
component
control knob
rotary actuator
actuator according
decorative ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20080105641
Other languages
German (de)
French (fr)
Other versions
EP2053484A3 (en
EP2053484A2 (en
Inventor
Peter Bolte
Till Fiegler
Henry Strobel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Continental Automotive GmbH
Original Assignee
Continental Automotive GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Automotive GmbH filed Critical Continental Automotive GmbH
Publication of EP2053484A2 publication Critical patent/EP2053484A2/en
Publication of EP2053484A3 publication Critical patent/EP2053484A3/en
Application granted granted Critical
Publication of EP2053484B1 publication Critical patent/EP2053484B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/30—Controlling members actuated by foot
    • G05G1/50—Manufacturing of pedals; Pedals characterised by the material used
    • G05G1/503—Controlling members for hand-actuation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C2045/0079—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping applying a coating or covering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
    • C25D5/02—Electroplating of selected surface areas

Definitions

  • the invention relates to a knob for a turntable with at least a first component and a second component, which are manufactured as injection molded parts and connected to each other and having in a plane adjacent and adjacent surfaces.
  • This training requires a manufacturing effort for the components and a large installation effort for the assembly of the components.
  • the object of the invention is therefore to provide a knob of the type mentioned, which can be produced and assembled with little effort.
  • the first component is surface-coated and the second component is not surface-coated and the first component and the second component are produced as a multicomponent injection-molded part, wherein the surface coating of the first component extends as far as the edge of the first adjacent to the second component Component and formed between the adjacent surfaces of the first component and the second component, a slot with a width of ⁇ 1 mm and the knob has a first component forming the cylindrical trim ring and the second component forming annular actuating part, which has approximately the same outer diameter having like the ornamental ring, wherein the annular actuating part is arranged in an annular groove formed in the radially encircling circumferential surface of the trim ring and wherein the trim ring has the surface coating on its region which is uncovered by the actuating part and adjacent to the annular groove.
  • the adjusting knob can be rotatably mounted about the longitudinal axis of trim ring and actuating part and the decorative ring may be formed in several parts.
  • the slit between the first and second components avoids an imprecise separation area between the surface coating of the first component and the non-surface coated second component because the edge of the surface coating is drawn into the slot and can not grow over to the second component.
  • the width of the slot is large enough to prevent such overgrowth but small enough not to be perceived optically or haptically.
  • the slot has a width between 0.1 mm and 0.5 mm, in particular of 0.3 mm.
  • a simple way of producing the slot which requires no substantial effort is that the slot is produced by a slide arranged in the injection mold during the production of the multi-component injection-molded part.
  • the slot can be produced by shrinkage of the first component and / or of the second component after the injection process.
  • the first component consists of a rigid plastic and the second component of an elastic plastic, so the first component provides the dimensional stability of the control element, while the second component is well and safely detected and ensures safe operation.
  • the first component can be made of ABS (acrylonitrile, butadiene, styrene copolymer) or ABS / PC (acrylonitrile, butadiene, styrene / polycarbonate) or PC (polycarbonate) or PA (polyamide) and the second component is TPE or TPU (thermoplastic elastomers) or EPDM (ethylene-propylene-diene rubber) or SEBS (styrene / ethene-butene / styrene-block copolymer).
  • ABS acrylonitrile, butadiene, styrene copolymer
  • PC acrylonitrile, butadiene, styrene / polycarbonate
  • PC polycarbonate
  • PA polyamide
  • the second component is TPE or TPU (thermoplastic elastomers) or EPDM (ethylene-propylene-diene rubber) or SEBS (styrene / ethene-
  • the surface coating may be a galvanized metal coating and in particular consist of chromium.
  • the surface coating is a color coat z. B. from a paint.
  • the illustrated control knobs of a turntable for motor vehicles have a decorative ring 1, 1 ', which has an annular groove 2, 2' on its radially circumferential lateral surface.
  • the trim ring 1, 1 ' is produced in a multi-component injection molding from a rigidly hardening plastic, wherein in the multi-component injection molding in the annular groove 2, 2', a plastic is injected, which forms an annular confirmation part 4, which is elastic after curing of the plastic.
  • the outer diameter of the trim ring 1, 1 'and the operating part 4 are the same. But you could also have different outer diameter.
  • slide 5 are introduced into the region of the radially circumferential side walls 6 of the annular grooves 2 during the multi-component injection molding, so that in the axial direction between the radially circumferential side walls 6 of the annular groove 2 and the radially encircling side walls 7 of the actuating parts 4 a radially encircling slot 8 is generated.
  • the width of the slots 8 is always less than 1 mm.
  • FIG. 2 is formed between the radially encircling side walls 6 of the annular groove 2 and the radially encircling side walls 7 of the actuating part 4 also a radially circumferential slot 8, which is formed by greater shrinkage of the plastic of the actuating part 4 relative to the plastic of the trim ring 1 '.
  • the degree of shrinkage is represented by hatching 9.
  • trim ring 1 'and actuator 4 are such that they do not enter into connection with each other during the injection process.
  • the actuating part 4 remains uncoated.

Description

Die Erfindung bezieht sich auf einen Stellknopf für einen Drehsteller mit mindestens einer ersten Komponente und einer zweiten Komponente, die als Spritzgussteile hergestellt und miteinander verbunden sind und die in einer Ebene nebeneinander liegende und aneinander angrenzende Oberflächen aufweisen.The invention relates to a knob for a turntable with at least a first component and a second component, which are manufactured as injection molded parts and connected to each other and having in a plane adjacent and adjacent surfaces.

Bei derartigen Bedienelementen ist es bekannt, die erste und die zweite Komponente separat herzustellen und danach die beiden Komponenten z. B. mittels Rastverbindung miteinander zu verbinden.In such controls, it is known to produce the first and the second component separately and then the two components z. B. by latching connection with each other.

Diese Ausbildung erfordert einen Herstellungsaufwand für die Komponenten und einen großen Montageaufwand für den Zusammenbau der Komponenten.This training requires a manufacturing effort for the components and a large installation effort for the assembly of the components.

US 6192774 beschreibt ein herkömmlicher Stellknopf. US 6192774 describes a conventional knob.

Aufgabe der Erfindung ist es daher, einen Stellknopf der eingangs genannten Art zu schaffen, das mit geringem Aufwand herstellbar und montierbar ist.The object of the invention is therefore to provide a knob of the type mentioned, which can be produced and assembled with little effort.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die erste Komponente oberflächenbeschichtet und die zweite Komponente nicht oberflächenbeschichtet ist und die erste Komponente und die zweite Komponente als Mehrkomponentenspritzgussteil hergestellt sind, wobei die Oberflächenbeschichtung der ersten Komponente sich bis an den an die zweite Komponente angrenzenden Rand der ersten Komponente erstreckt und zwischen den nebeneinander liegenden Oberflächen der ersten Komponente und der zweiten Komponente ein Schlitz mit einer Breite < 1 mm gebildet ist und der Stellknopf einen die erste Komponente bildenden zylindrischen Zierring und ein die zweite Komponente bildendes ringförmigen Betätigungsteil aufweist, das annähernd den gleichen Außendurchmesser aufweist wie der Zierring, wobei das ringförmige Betätigungsteil in einer in der radial umlaufenden Mantelfläche des Zierrings ausgebildeten Ringnut angeordnet ist und wobei der Zierring an seinem von dem Betätigungsteil unbedeckten, an die Ringnut angrenzenden Bereich die Oberflächenbeschichtung aufweist.This object is achieved in accordance with the invention in that the first component is surface-coated and the second component is not surface-coated and the first component and the second component are produced as a multicomponent injection-molded part, wherein the surface coating of the first component extends as far as the edge of the first adjacent to the second component Component and formed between the adjacent surfaces of the first component and the second component, a slot with a width of <1 mm and the knob has a first component forming the cylindrical trim ring and the second component forming annular actuating part, which has approximately the same outer diameter having like the ornamental ring, wherein the annular actuating part is arranged in an annular groove formed in the radially encircling circumferential surface of the trim ring and wherein the trim ring has the surface coating on its region which is uncovered by the actuating part and adjacent to the annular groove.

Dabei kann der Stellknopf um die Längsachse von Zierring und Betätigungsteil drehbar gelagert sowie der Zierring mehrteilig ausgebildet sein.In this case, the adjusting knob can be rotatably mounted about the longitudinal axis of trim ring and actuating part and the decorative ring may be formed in several parts.

Durch die Herstellung als Mehrkomponentenspritzgussteil entfällt eine Montagetätigkeit und es ist auch nur ein Spritzgießwerkzeug erforderlich.Due to the production as a multi-component injection molded part eliminates a mounting activity and it is also only an injection mold required.

Damit entfällt auch ein Logistikaufwand zum Lagern und einander Zuführen der einzelnen Komponenten.This also eliminates a logistics effort for storing and feeding each other components.

Durch den Schlitz zwischen der ersten und der zweiten Komponente wird ein unsauberer Trennungsbereich zwischen der Oberflächenbeschichtung der ersten Komponente und der nicht oberflächenbeschichteten zweiten Komponente vermieden, da der Rand der Oberflächenbeschichtung in den Schlitz hingezogen ist und nicht zur zweiten Komponente herüberwachsen kann.The slit between the first and second components avoids an imprecise separation area between the surface coating of the first component and the non-surface coated second component because the edge of the surface coating is drawn into the slot and can not grow over to the second component.

Die Breite des Schlitzes ist groß genug, um ein solches Herüberwachsen zu verhindern, aber klein genug, um optisch oder haptisch nicht wahrgenommen zu werden.The width of the slot is large enough to prevent such overgrowth but small enough not to be perceived optically or haptically.

Dazu ist es völlig ausreichend, wenn der Schlitz eine Breite zwischen 0,1 mm und 0,5 mm, insbesondere von 0,3 mm aufweist.For this purpose, it is quite sufficient if the slot has a width between 0.1 mm and 0.5 mm, in particular of 0.3 mm.

Eine einfache, keinen wesentlichen Aufwand erfordernde Möglichkeit zur Erzeugung des Schlitzes besteht darin, dass der Schlitz durch einen bei der Herstellung des Mehrkomponentenspritzgussteils in der Spritzgussform angeordneten Schiebers erzeugt ist.A simple way of producing the slot which requires no substantial effort is that the slot is produced by a slide arranged in the injection mold during the production of the multi-component injection-molded part.

In einer weiteren, die gleichen Vorteile aufweisenden Ausbildung kann der Schlitz durch Schwinden der ersten Komponente und/oder der zweiten Komponente nach dem Spritzvorgang erzeugt sein.In a further embodiment having the same advantages, the slot can be produced by shrinkage of the first component and / or of the second component after the injection process.

Besteht die erste Komponente aus einem starren Kunststoff und die zweite Komponente aus einem elastischen Kunststoff, so sorgt die erste Komponente für die Formstabilität des Bedienelements, während die zweite Komponente gut und sicher erfassbar ist und für eine sichere Bedienbarkeit sorgt.If the first component consists of a rigid plastic and the second component of an elastic plastic, so the first component provides the dimensional stability of the control element, while the second component is well and safely detected and ensures safe operation.

Die erste Komponente kann aus ABS (Acrylnitrid-, Butadien-, Styrol-Copolymer) oder ABS/PC (Acrylnitrid-, Butadien-, Styrol/Polycarbonat) oder PC (Polycarbonat) oder PA (Polyamid) und die zweite Komponente aus TPE oder aus TPU (thermoplastische Elastomere) oder EPDM (Ethylen-Propylen-Dien-Kautschuk) oder SEBS (Styrol/Ethenbuten/Styrol-Block-Copolymerisat) bestehen.The first component can be made of ABS (acrylonitrile, butadiene, styrene copolymer) or ABS / PC (acrylonitrile, butadiene, styrene / polycarbonate) or PC (polycarbonate) or PA (polyamide) and the second component is TPE or TPU (thermoplastic elastomers) or EPDM (ethylene-propylene-diene rubber) or SEBS (styrene / ethene-butene / styrene-block copolymer).

Die Oberflächenbeschichtung kann eine galvanisierte Metallbeschichtung sein und insbesondere aus Chrom bestehen.The surface coating may be a galvanized metal coating and in particular consist of chromium.

Es ist aber auch möglich, dass die Oberflächenbeschichtung eine Farbbeschichtung z. B. aus einem Lack ist.But it is also possible that the surface coating is a color coat z. B. from a paint.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im Folgenden näher beschrieben. Es zeigen

Figur 1
ein erstes Ausführungsbeispiel eines Stellknopfes im Querschnitt,
Figur 2
ein zweites Ausführungsbeispiel eines Stellknopfes im Querschnitt,
Figur 3a
einen Ausschnitt im Bereich der Ringnut eines dritten Ausführungsbeispiels eines Stellkopfes im Querschnitt mit einem Schieber,
Figur 3b
den Ausschnitt nach Figur 3a ohne Schieber,
Figur 4a
einen Ausschnitt im Bereich der Ringnut eines vierten Ausführungsbeispiels eines Stellknopfes im Querschnitt mit einem Schieber,
Figur 4b
den Ausschnitt nach Figur 4a ohne Schieber,
Figur 5a
einen Ausschnitt im Bereich der Ringnut des Ausführungsbeispiels der Figur 1 im Querschnitt mit Schieber,
Figur 5b
den Ausschnitt nach Figur 5a ohne Schieber,
Figur 6a
einen Ausschnitt im Bereich der Ringnut eines fünften Ausführungsbeispiels eines Stellknopfs im Querschnitt mit einem Schieber,
Figur 6b
den Ausschnitt nach Figur 6a ohne Schieber,
Figur 7a
einen Ausschnitt im Bereich der Ringnut eines sechsten Ausführungsbeispiels eines Stellknopfs im Querschnitt mit einem Schieber und
Figur 7b
den Ausschnitt nach Figur 7a ohne Schieber.
Embodiments of the invention are illustrated in the drawings and will be described in more detail below. Show it
FIG. 1
a first embodiment of a control knob in cross section,
FIG. 2
A second embodiment of a control knob in cross section,
FIG. 3a
a cutout in the area of the annular groove of a third embodiment of a control head in cross section with a slider,
FIG. 3b
the clipping after FIG. 3a without slider,
FIG. 4a
a detail in the region of the annular groove of a fourth embodiment of a control knob in cross section with a slider,
FIG. 4b
the clipping after FIG. 4a without slider,
FIG. 5a
a section in the region of the annular groove of the embodiment of FIG. 1 in cross section with slider,
FIG. 5b
the clipping after FIG. 5a without slider,
FIG. 6a
a detail in the region of the annular groove of a fifth embodiment of a control knob in cross section with a slider,
FIG. 6b
the clipping after FIG. 6a without slider,
Figure 7a
a section in the region of the annular groove of a sixth embodiment of a control knob in cross-section with a slider and
FIG. 7b
the clipping after Figure 7a without slider.

Die dargestellten Stellknöpfe eines Drehstellers für Kraftfahrzeuge weisen einen Zierring 1, 1' auf, der an seiner radial umlaufenden Mantelfläche eine Ringnut 2, 2' aufweist.The illustrated control knobs of a turntable for motor vehicles have a decorative ring 1, 1 ', which has an annular groove 2, 2' on its radially circumferential lateral surface.

In den Figuren 1 und 3a - 5a ist am Boden der Ringnut 2 eine weitere Ringnut 3 geringerer Breite ausgebildet, so dass eine Stufe gebildet ist.In the FIGS. 1 and 3a-5a At the bottom of the annular groove 2, a further annular groove 3 of lesser width is formed, so that a step is formed.

Bei den Figuren 2, 6a und 7a ist die Ringnut 2' ohne eine solche Stufe ausgebildet.Both Figures 2 . 6a and 7a is the annular groove 2 'formed without such a step.

Der Zierring 1, 1' ist in einem Mehrkomponentenspritzgussverfahren aus einem starr aushärtenden Kunststoff erzeugt, wobei bei dem Mehrkomponentenspritzgussverfahren in der Ringnut 2, 2' ein Kunststoff eingespritzt ist, der ein ringförmiges Bestätigungsteil 4 bildet, das nach Aushärten des Kunststoffs elastisch ist.The trim ring 1, 1 'is produced in a multi-component injection molding from a rigidly hardening plastic, wherein in the multi-component injection molding in the annular groove 2, 2', a plastic is injected, which forms an annular confirmation part 4, which is elastic after curing of the plastic.

Die Außendurchmesser des Zierrings 1, 1' und des Betätigungsteils 4 sind gleich. Sie könnten aber auch unterschiedliche Außendurchmesser besitzen.The outer diameter of the trim ring 1, 1 'and the operating part 4 are the same. But you could also have different outer diameter.

Wie in den Figuren 3a bis 7a zu sehen ist, sind während des Mehrkomponentenspritzgussverfahrens Schieber 5 in den Bereich der radial umlaufenden Seitenwände 6 der Ringnuten 2 eingeführt, so dass in axialer Richtung zwischen den radial umlaufenden Seitenwänden 6 der Ringnut 2 und den radial umlaufenden Seitenwänden 7 der Betätigungsteile 4 ein radial umlaufender Schlitz 8 erzeugt wird.As in the FIGS. 3a to 7a can be seen, slide 5 are introduced into the region of the radially circumferential side walls 6 of the annular grooves 2 during the multi-component injection molding, so that in the axial direction between the radially circumferential side walls 6 of the annular groove 2 and the radially encircling side walls 7 of the actuating parts 4 a radially encircling slot 8 is generated.

Wie den Figuren 3b - 7b zu entnehmen ist, können die Schlitze 8 je nach Querschnitt der Schieber 5 unterschiedliche Querschnitte aufweisen.Like that Figures 3b - 7b can be seen, the slots 8, depending on the cross section of the slide 5 have different cross-sections.

Die Breite der Schlitze 8 ist aber immer geringer als 1 mm.The width of the slots 8 is always less than 1 mm.

Bei dem Ausführungsbeispiel der Figur 2 wird zwischen den radial umlaufenden Seitenwänden 6 der Ringnut 2 und den radial umlaufenden Seitenwänden 7 des Betätigungsteils 4 ebenfalls ein radial umlaufender Schlitz 8 gebildet, der durch stärkeres Schwinden des Kunststoffs des Betätigungsteils 4 gegenüber dem Kunststoff des Zierrings 1' gebildet ist.In the embodiment of the FIG. 2 is formed between the radially encircling side walls 6 of the annular groove 2 and the radially encircling side walls 7 of the actuating part 4 also a radially circumferential slot 8, which is formed by greater shrinkage of the plastic of the actuating part 4 relative to the plastic of the trim ring 1 '.

Das Maß des Schwindens ist durch eine Schraffur 9 dargestellt.The degree of shrinkage is represented by hatching 9.

Die Kunststoffe von Zierring 1' und Betätigungsteil 4 sind derart, dass sie beim Spritzvorgang keine Verbindung miteinander eingehen.The plastics of trim ring 1 'and actuator 4 are such that they do not enter into connection with each other during the injection process.

Nach dem Herstellen von Zierring 1, 1' und Betätigungsteil 4 als Mehrkomponentenspritzgussteil erhält der Zierring 1, 1' durch Galvanisieren eine Oberflächenbeschichtung 10 aus Chrom.After the production of decorative ring 1, 1 'and actuating part 4 as a multi-component injection molded part of the trim ring 1, 1' receives by electroplating a surface coating 10 of chromium.

Das Betätigungsteil 4 bleibt unbeschichtet.The actuating part 4 remains uncoated.

Durch die Schlitze 8 wird eine saubere Begrenzung und Trennung der Oberflächenbeschichtung 10 an dem an die Ringnut 2, 2' angrenzenden Bereich des Zierrings 1, 1' erreicht und ein unsauberes Herüberwachsen der Oberflächenbeschichtung 10 zum Randbereich des Betätigungsteils 4 vermieden.Through the slots 8 a clean boundary and separation of the surface coating 10 at the adjacent to the annular groove 2, 2 'region of the trim ring 1, 1' is achieved and an unclean overgrowing of the surface coating 10 to the edge region of the operating part 4 avoided.

Claims (12)

  1. Control knob for a rotary actuator comprising at least a first component and a second component, which are produced as injection-moulded parts and are connected to each other and which have surfaces that lie next to each other in a plane and are adjacent to each other, characterized in that the first component is surface-coated and the second component is not surface-coated and the first component and the second component are produced as a multi-component injection-moulded part, wherein the surface coating (10) of the first component extends up to the border of the first component that is adjacent to the second component and a slit (8) with a width < 1 mm is formed between the surfaces lying next to each other of the first component and the second component and the control knob has a cylindrical decorative ring (1, 1'), which forms the first component, and an annular actuating part (4), which forms the second component and has approximately the same outside diameter as the decorative ring (1, 1'), wherein the annular actuating part (4) is arranged in an annular groove (2, 2') formed in the radially peripheral outer surface of the decorative ring (1, 1') and wherein the decorative ring (1, 1') has the surface coating (10) at its region that is not covered by the actuating part (4) and is adjacent to the annular groove (2, 2').
  2. Control knob for a rotary actuator according to Claim 1, characterized in that the slit (8) has a width of between 0.1 mm and 0.5 mm, in particular of 0.3 mm.
  3. Control knob for a rotary actuator according to one of the preceding claims, characterized in that the slit (8) is produced by a slide (5) arranged in the injection mould during the production of the multi-component injection-moulded part.
  4. Control knob for a rotary actuator according to one of Claims 1 to 3, characterized in that the slit (8) is produced by shrinkage of the first component and/or the second component after the injecting operation.
  5. Control knob for a rotary actuator according to one of the preceding claims, characterized in that the first component consists of a rigid plastic and the second component consists of a flexible plastic.
  6. Control knob for a rotary actuator according to Claim 5, characterized in that the first component consists of ABS (acrylonitrile, butadiene, styrene copolymer) or ABS/PC (acrylonitrile, butadiene, styrene/polycarbonate) or PC (polycarbonate) or PA (polyamide).
  7. Control knob for a rotary actuator according to Claim 5, characterized in that the second component consists of TPE or TPU (thermoplastic elastomers) or EPDM (ethylenepropylene-diene rubber) or SEBS (styrene/ethene-butene/styrene block copolymer).
  8. Control knob for a rotary actuator according to one of the preceding claims, characterized in that the surface coating (10) is a galvanized metal coating.
  9. Control knob for a rotary actuator according to Claim 8, characterized in that the metal coating consists of chromium.
  10. Control knob for a rotary actuator according to one of Claims 1 to 7, characterized in that the surface coating is a paint coating.
  11. Control knob for a rotary actuator according to one of the preceding claims, characterized in that the control knob is mounted rotatably about the longitudinal axis of the decorative ring (1, 1') and the actuating part (4).
  12. Control knob for a rotary actuator according to one of the preceding claims, characterized in that the decorative ring is of a multi-part form.
EP20080105641 2007-10-25 2008-10-23 Control knob Active EP2053484B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200710051399 DE102007051399B4 (en) 2007-10-25 2007-10-25 operating element

Publications (3)

Publication Number Publication Date
EP2053484A2 EP2053484A2 (en) 2009-04-29
EP2053484A3 EP2053484A3 (en) 2009-12-02
EP2053484B1 true EP2053484B1 (en) 2013-01-23

Family

ID=40280751

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080105641 Active EP2053484B1 (en) 2007-10-25 2008-10-23 Control knob

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EP (1) EP2053484B1 (en)
DE (1) DE102007051399B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9062386B2 (en) * 2011-03-01 2015-06-23 Srg Global, Inc. Methods of multi-shot injection molding and metal-plated polymeric articles made therefrom
DE102011005742A1 (en) * 2011-03-17 2012-09-20 Siemens Aktiengesellschaft Electromechanical control device e.g. potentiometer used in industrial field, has collet element having outer portion, inner portion and fastening element, which is torsion-fitted in actuating element
WO2013170912A1 (en) * 2012-05-14 2013-11-21 Gerhardi Kunststofftechnik Gmbh Composite component made of plastic
DE102014019607A1 (en) * 2014-12-30 2016-06-30 Audi Ag Decorative part for a motor vehicle

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6751024U (en) * 1968-07-16 1969-01-30 Zeiss Ikon Ag ROTARY KNOB FOR EQUIPMENT IN FINE WORK TECHNOLOGY, IN PARTICULAR. PHOTOGRAPHIC EQUIPMENT
DE4308819C2 (en) * 1992-03-28 2000-11-16 Volkswagen Ag Multi-colored component manufactured by injection molding
DE19636643C1 (en) * 1996-09-10 1998-02-12 Preh Elektro Feinmechanik Knob top
US6368536B1 (en) * 1997-09-15 2002-04-09 Snap-On Technologies, Inc. Method of forming tool with dual-material handle
DE19856902C2 (en) * 1998-12-10 2001-02-08 Huf Huelsbeck & Fuerst Gmbh External door handle, especially for vehicles, with a handle and with a pressure actuator integrated into it
EP1094372B1 (en) * 1999-10-19 2004-08-11 ETA SA Manufacture Horlogère Suisse Control knob
DE202004020339U1 (en) * 2004-01-19 2005-04-07 Woco Industrietechnik Gmbh Elastic cover body for motor vehicle pedal foot plate and/or foot support has profiled upper side with at least one region of a first thermoplastic elastomer materials and another of a second thermoplastic elastomer materials
DE102006011641B3 (en) * 2006-03-06 2007-07-05 Helag-Electronic Gmbh Actuating part for electrical switching arrangement, has actuating body which is formed as coated plastic shaped part into which switching symbol element is integrated
DE202006015438U1 (en) * 2006-10-09 2006-12-07 Schoeller Arca Systems Services Gmbh Drinks crate has base and walls made from first plastic and section made from a second plastic which is injection molded on to this, separating strip in top edge of the wall fitting against inner surface of mold during molding

Also Published As

Publication number Publication date
EP2053484A3 (en) 2009-12-02
EP2053484A2 (en) 2009-04-29
DE102007051399B4 (en) 2010-09-09
DE102007051399A1 (en) 2009-05-07

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